Finding the Third Proportional to 3,590,605 and 7,856,858

Step by Step Solution

1. Step 1: Write the proportion equation
   3,590,605 : 7,856,858 = 7,856,858 : x
2. Step 2: Convert to fraction form
   3,590,605/7,856,858 = 7,856,858/x
3. Step 3: Cross multiply
   3,590,605x = 7,856,858 × 7,856,858
4. Step 4: Simplify right side
   3,590,605x = 61,730,217,632,164
5. Step 5: Solve for x
   x = 61,730,217,632,164/3,590,605
6. Step 6: Final answer
   x = 17,192,149.41